6 Best Fitted Sheets for Bedside Sleepers (November 2026)
The best bedside sleeper sheets include the Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20 for a 4-sheet rotation, the Biloban Bassinet Sheets for GROWNSY and Semphis for select GROWNSY sleepers, and the Gllquen Baby 3-Pack Muslin Cotton Bassinet Sheets for 33 x 20 muslin cotton.
On this page (7 sections)
The best bedside sleeper sheets for most 33 x 20 inch mattresses are the Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20, because the 4-pack gives you the most change-day flexibility and the full-coverage elastic is made for a snug fitted feel. Choose the Biloban for compatible GROWNSY or Semphis bassinets, or lulumoon when your mattress is closer to 33 x 21 inches.
Bedside sleeper sheets need a closer fit than ordinary crib sheets. Small differences in length, width and mattress shape can leave fabric loose or make the sheet hard to pull over the corners.
If you're comparing general bassinet bedding, start with our guide to the best baby bassinet sheets. For a closer look at 33 x 20 inch bedding, see our best bedside bassinet sheets.
Our picks at a glance
-
1
Best for a 4-sheet rotationGllquen Baby Bedside Sleeper Bassinet Sheets 33x20
9.6/10 our score
See it on Amazon -
2
Best for select GROWNSY sleepersBiloban Bassinet Sheets for GROWNSY and Semphis
9.5/10 our score
See it on Amazon -
3
Best for 33 x 20 muslin cottonGllquen Baby 3-Pack Muslin Cotton Bassinet Sheets
9.4/10 our score
See it on Amazon
- 4
Check itNiceye Muslin Bassinet Sheets 3-Pack for Bedside
Best for two mattress size options - 5
Check itlulumoon Muslin Baby Bassinet Sheets
Best for 33 x 21 inch mattresses - 6
Check itLYRICHOM BABY Muslin Bedside Sleeper Sheets 2 Pack
Best for bright prints and 360° elastic
The best bedside sleeper sheets for each mattress shape
The best bedside sleeper sheets depend first on the mattress size, then on fabric and pack count. The picks below are ordered by score, with the highest-scoring option first.
Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20: Best for a 4-sheet rotation
- 33 x 20 inch fit
- 4-pack
- 100% microfiber polyester
- Full-coverage elastic band
- OEKO-TEX STANDARD 100 certified
A 4-pack gives you the largest clean-sheet rotation in this group. The 33 x 20 inch size and full-coverage elastic suit shoppers whose bedside sleeper mattress matches those dimensions.
Pros
- Largest pack in this roundup
- Full-coverage elastic band
- Machine washable
Cons
- Microfiber instead of cotton muslin
- Check mattress dimensions before ordering
The Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20 are the strongest all-around choice for a bedside sleeper mattress that measures 33 x 20 inches. The 4-pack gives you one sheet in use, one in the wash and extra clean options for unexpected changes.
The sheets use 100% microfiber polyester, so they differ from the muslin cotton picks below. The full-coverage elastic band is designed to keep the fitted sheet firmly around the mattress instead of leaving loose edges.
GLLQUEN BABY states that the fabric is OEKO-TEX STANDARD 100 certified. The sheets are machine washable, which matters when you want a simple care routine for frequent changes.
The floral pattern adds a decorative choice, while the 33 x 20 inch size keeps the buying decision clear. The stretchable fitted design may also suit similarly sized oval or rectangular bassinets, but measure your mattress before relying on a similar shape.
Choose this set if your main goal is a larger sheet rotation for a standard 33 x 20 inch bedside sleeper. If you prefer muslin cotton, the Gllquen 3-pack below is the closer material match.
Biloban Bassinet Sheets for GROWNSY and Semphis: Best for select GROWNSY sleepers
- 100% cotton jersey
- 2-pack
- Designed for GROWNSY and Semphis bassinets
- Stitched hidden elastic bands
- Machine washable
Biloban is the focused choice for compatible GROWNSY and Semphis bedside bassinets. Its 100% cotton jersey fabric is stretchy and breathable, while the 2-pack supports a basic wash rotation.
Pros
- Named compatibility with GROWNSY and Semphis
- Cotton jersey fabric
- Stitched hidden elastic
Cons
- Only 2 sheets
- Less flexible if your sleeper is a different model
Biloban is the focused pick for owners of compatible GROWNSY and Semphis bedside bassinets. Its 100% cotton jersey fabric is lightweight, breathable and stretchy, which gives it a different feel from microfiber and woven muslin.
The 2-pack is enough for a basic change-and-wash cycle. You can keep one fitted sheet on the mattress while the second is being cleaned, but it gives you less backup than the 3- and 4-packs in this roundup.
Stitched hidden elastic bands help the sheet stay secured and wrinkle-free around the mattress. Biloban also specifies machine washing on a gentle cycle, with low tumble drying or line drying as care options.
This sheet makes the most sense when the sleeper model is one of the named compatible GROWNSY or Semphis designs. If your bedside sleeper has a different model or mattress size, compare measurements before choosing it.
Choose Biloban when model compatibility matters more than having a large pack. For a 33 x 20 inch mattress without those named model requirements, the first or third pick may be easier to match.
Gllquen Baby 3-Pack Muslin Cotton Bassinet Sheets: Best for 33 x 20 muslin cotton
- 33 x 20 inch size
- 100% muslin cotton
- 3-pack
- 4 inch pocket depth
- OEKO-TEX STANDARD 100 certified
This 3-pack pairs a 33 x 20 inch footprint with breathable muslin cotton. It suits shoppers who want a larger rotation than 2 sheets and a pocket depth stated up to 4 inches.
Pros
- 100% muslin cotton
- 3-sheet rotation
- 4 inch pocket depth
Cons
- Confirm the mattress shape and dimensions
- Muslin may need gentle care
The Gllquen Baby 3-Pack Muslin Cotton Bassinet Sheets suit shoppers who want 33 x 20 inch bedding in 100% muslin cotton. The 3-pack gives you a practical middle ground between a 2-sheet set and the 4-pack at the top.
The fitted sheet has a full-elastic trim and a stated pocket depth of up to 4 inches. That measurement helps you compare the sheet with your mattress thickness, but the mattress length and width still need to match.
GLLQUEN BABY states that the muslin cotton is OEKO-TEX STANDARD 100 certified. Muslin is lightweight and breathable, and the fabric is machine washable for routine care.
The sheet is described for most leading bedside sleepers, bassinets and some travel cribs. Named examples include Baby Delight, Dream on Me and certain Maxi-Cosi and BabyBond travel crib uses, but the 33 x 20 inch measurement should guide your choice.
Choose this set when you want muslin cotton, a 3-sheet rotation and a 33 x 20 inch mattress fit. For a wider 33 x 21 inch mattress, compare the Niceye or lulumoon options instead.
Niceye Muslin Bassinet Sheets 3-Pack for Bedside: Best for two mattress size options
- 100% cotton muslin
- 3-pack
- 33 x 21 inch and 32 x 16 inch options
- 4 inch pocket depth
- Machine washable
Niceye stands out for shoppers comparing different bedside sleeper shapes because it includes 33 x 21 inch and 32 x 16 inch size options. The 3-pack keeps one sheet ready while another is washing.
Pros
- Two stated size options
- 100% cotton muslin
- 3-sheet rotation
Cons
- You must choose the correct size option
- The smaller option is not the same as 33 x 21 in
Niceye is the most flexible choice for shoppers comparing two common bedside sleeper sizes. The set offers a 33 x 21 inch option and a 32 x 16 inch option, so you can match the sheet to either a larger rectangular mattress or a smaller bassinet shape.
The sheets use 100% cotton muslin and have a 4 inch pocket depth. The 3-pack supports regular changes without requiring laundry after every single sheet replacement.
Niceye names select Baby Delight, Dream On Me and AMKE rectangular bedside sleepers for the 33 x 21 inch size. The 32 x 16 inch size is described for select HALO BassiNest, Graco and Chicco mattresses, including oval and hourglass shapes.
The size choice is also the main detail to check carefully. These are not interchangeable dimensions, so measure the mattress and select the correct option before ordering.
Choose Niceye when your sleeper falls into one of its two stated size groups or when you want cotton muslin with three sheets. For a 33 x 20 inch mattress, the Gllquen 3-pack is the closer match.
lulumoon Muslin Baby Bassinet Sheets: Best for 33 x 21 inch mattresses
- 33 x 21 x 4 inch size
- 100% muslin cotton
- 2-pack
- Fits mattresses 29 to 33 inches long and 17 to 21 inches wide
- OEKO-TEX certified
lulumoon is the most useful fit-range pick for a mattress near 33 x 21 inches. Its 2-pack is compact, while the stated length and width range helps shoppers compare a slightly wider sleeper mattress.
Pros
- Clear length and width fit range
- 100% muslin cotton
- 4 inch pocket
Cons
- Only 2 sheets
- Not the closest match for a 33 x 20 inch mattress
lulumoon is a strong fit-range choice for a bedside sleeper mattress near 33 x 21 inches. The 33 x 21 x 4 inch sheet has elastic edges and is designed for mattresses from 29 to 33 inches long, 17 to 21 inches wide and 1 to 2 inches thick.
The stated range makes this option useful when your mattress does not match one exact length and width. You still need to compare the actual thickness because the fit range names 1 to 2 inch mattresses.
The fabric is 100% muslin cotton, and lulumoon states that it is OEKO-TEX certified. The 2-pack gives you a clean replacement while the other sheet is washing.
Named compatible examples include Maxi-Cosi Iora, Angelbliss and Baby Delight Beside Me Dreamer bassinets. The neutral colors and boho patterns may also suit a nursery where you want bedding that blends with different decor.
Choose lulumoon for a 33 x 21 inch or similarly sized mattress within the stated range. If your mattress is 33 x 20 inches, select a closer size instead of assuming the extra inch will create a secure fit.
For a closer look at that model, compare our guide to the best maxi cosi iora sheets.
LYRICHOM BABY Muslin Bedside Sleeper Sheets 2 Pack: Best for bright prints and 360° elastic
- 33 x 22 inch size
- 100% muslin cotton
- 2 fitted sheets
- 360° elastic band
- Machine washable
LYRICHOM suits shoppers whose mattress measures 33 x 22 inches and who want a fully encased 360° elastic band. Its 2-pack covers the basic change-and-wash cycle.
Pros
- 360° elastic band
- 100% muslin cotton
- Bright colors and prints
Cons
- Wider than the 33 x 20 inch picks
- Only 2 sheets
LYRICHOM BABY is designed for a wider 33 x 22 inch bedside sleeper mattress. Its 360° elastic band encases the sheet edges, while the 2-pack covers a basic wash-and-change routine.
The sheets are made from 100% muslin cotton and are described as breathable and lightweight. A 120 thread count is also specified, but softness and fit should remain secondary to matching the mattress dimensions.
The bright colors and prints give this set a different look from the neutral and green options elsewhere in the roundup. The sheets are machine washable, which supports regular cleaning.
LYRICHOM BABY describes the sheets as fitting most rectangular bedside bassinets. The 33 x 22 inch dimensions make them a better match for a wider mattress than the 33 x 20 inch choices.
Choose this set if your mattress measures 33 x 22 inches and you want muslin cotton with fully encased elastic. If your mattress is narrower, look at the exact-size picks first.
How we compared these bedside sleeper sheets
Our score weighs fit, fabric, pack count, care details and buyer feedback against what you are shopping for. A sheet with a clear mattress size can rank above a softer sounding option when the dimensions are more likely to match your sleeper.
Fit comes first because a bedside sleeper mattress is smaller and more specific than a crib mattress. A sheet that is an inch too wide or too narrow can leave loose fabric at the corners even when the material feels good.
Fabric comes next, but it cannot fix a size mismatch. Cotton muslin, cotton jersey and microfiber polyester each feel different against baby skin, yet none of them will sit safely if the length, width or pocket depth is wrong for the mattress.
Pack count matters for daily life rather than for the first night alone. A 2-pack supports a simple change and wash cycle, while a 3-pack or 4-pack gives more time before laundry becomes urgent after a spit up or leak.
Care details also affect the ranking because sheets are washed often. Machine washable options suit busy routines, while a set that needs gentler handling may need more planning around drying and backup sheets.
Compatibility claims can help narrow a choice when they name a sleeper model. They still do not replace measuring, since one version of a sleeper may use a different mattress shape from another version.
We compared stated sizes such as 33 x 20, 33 x 21 and 33 x 22 inches against the mattress each shopper is likely to own. When a sheet gives a stated fit range or pocket depth, that detail makes the comparison more useful than a general claim about fitting most bassinets.
Buyer feedback was weighed in a practical way rather than treated as proof of fit. A sheet can be well liked for softness and still be the wrong size for a particular mattress.
Storage and rotation were also part of the decision. Extra sheets only help if they are kept clean, dry and sorted by size so the correct one is ready for a quick change.
The product names and features above come from the supplied product information. The ranking is meant to guide a size first purchase, with fabric and pack count used to choose among sheets that already match the mattress.
| Product | Best for | Size | Material | Pack | Our score |
|---|---|---|---|---|---|
| Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20 | a 4-sheet rotation | 33 x 20 in | 100% microfiber polyester | 4 sheets | 9.6 |
| Biloban Bassinet Sheets for GROWNSY and Semphis | select GROWNSY sleepers | 100% cotton jersey | 2 sheets | 9.5 | |
| Gllquen Baby 3-Pack Muslin Cotton Bassinet Sheets | 33 x 20 muslin cotton | 33 x 20 in | 100% muslin cotton | 9.4 | |
| Niceye Muslin Bassinet Sheets 3-Pack for Bedside | two mattress size options | 100% cotton muslin | 3 sheets | 9.2 | |
| lulumoon Muslin Baby Bassinet Sheets | 33 x 21 inch mattresses | 33 x 21 x 4 in | 2 sheets | 9.0 | |
| LYRICHOM BABY Muslin Bedside Sleeper Sheets 2 Pack | bright prints and 360° elastic | 33 x 22 in | 100% muslin cotton | 2 fitted sheets | 8.7 |
How to measure a bedside sleeper mattress
Measure the mattress length from end to end, then measure the widest point from side to side. If the mattress has rounded corners or an oval shape, record the overall length and width rather than measuring only the flat center.
Measure thickness separately. A sheet with a 4 inch pocket may fit a thinner mattress, but the best result comes from comparing the pocket depth with the mattress height and the sheet's stated fit range.
Do not measure the outside frame. The frame may be wider or longer than the mattress, which would lead you to choose a sheet that is too loose.
Write down the measurements before shopping. For example, a 33 x 20 inch mattress points toward the Gllquen 4-pack or 3-pack, while a 33 x 22 inch mattress points toward LYRICHOM BABY.
The mattress must also be in good condition before you fit a sheet. A damaged or altered mattress can change the surface shape and make a fitted sheet sit differently.
Cotton muslin, cotton jersey or microfiber?
Cotton muslin is the main fabric in this roundup, appearing in the Gllquen 3-pack, Niceye, lulumoon and LYRICHOM BABY. It is a lightweight woven fabric that many shoppers choose when they want breathable cotton bedding.
Muslin suits parents who want a light, airy feel for naps and nighttime sleep. Its open weave helps air move across the surface, which can feel cooler than a denser knit in warm weather.
Muslin also suits shoppers who like cotton and want fabric that is easy to wash for frequent changes. The trade off is that muslin still needs a careful fit, since a loose muslin sheet is no safer than a loose sheet in another fabric.
Biloban uses 100% cotton jersey. Jersey has a stretchy knit feel, which can help when pulling a fitted sheet over compatible mattress corners.
Cotton jersey suits parents who prefer a soft, stretchy sheet that hugs the mattress without feeling stiff. That stretch can make set up easier on the named GROWNSY and Semphis bassinets, where the sheet is made to match the sleeper.
Jersey is still cotton, but it behaves differently from woven muslin during washing and drying. Biloban specifies a gentle cycle with low tumble drying or line drying, so care needs planning if you want the sheet to keep its shape.
The top Gllquen set uses 100% microfiber polyester. It may suit you if you prefer a synthetic fabric and want the largest 4-sheet rotation in this group.
Microfiber suits parents who want a 33 x 20 inch sheet with a 4-pack for quick changes and laundry backup. The fabric is described as soft and easy to machine wash, which fits a routine built around frequent cleaning.
The trade off is material preference rather than size. Shoppers who specifically want cotton muslin for breathability may prefer one of the muslin sets, provided the dimensions match their mattress.
No fabric automatically makes an incorrectly sized sheet safe or comfortable. Fit the sheet tightly around the mattress and remove it for washing if it becomes loose, damaged or stretched.
A good fabric choice should support the fit you already confirmed by measuring. Choose the material that fits your care routine and your baby comfort preference, then check the size again before you order.
How many sheets should you keep?
A 2-pack can work for a simple routine. One sheet stays on the mattress while the second is in the wash, but you may need to do laundry quickly after a messy change.
A 2-pack suits parents who wash and dry sheets the same day and keep another backup elsewhere. It is less forgiving when a change happens late at night or when drying takes longer.
A 3-pack gives more breathing room. One can be in use, one can be washing and one can stay clean in a drawer.
A 3-pack suits families who want a middle ground between cost, storage and backup. It helps when spit up or leaks happen often and laundry does not happen every day.
A 4-pack provides the most flexibility in this group. The Gllquen 33 x 20 inch set suits families who want extra backup for spit up, leaks or nights when laundry is delayed.
Your storage space and washing routine matter as much as the pack count. More sheets are helpful only if you can store them clean and keep the correct size separate from other bassinet bedding.
Choose the pack count after you confirm the mattress size and fabric. The best number is the one that keeps a clean fitted sheet ready without creating clutter you cannot manage.
Safe fit and everyday care
Use a fitted sheet that matches the mattress dimensions and sits smooth across the surface. Loose fabric, bunching or exposed mattress edges are signs to remove the sheet and check the size or installation.
Follow the care instructions for the set you choose. Several picks are machine washable, while Biloban specifies a gentle cycle with low tumble drying or line drying.
Keep spare sheets clean and dry in a drawer or storage bin. Check the elastic and seams during routine changes, especially after repeated washing.
Do not layer extra loose blankets, pads or other soft items under the fitted sheet unless the sleeper and mattress instructions specifically allow them. If you have questions about the sleep setup, follow the bassinet and mattress manufacturer instructions.
For related equipment guidance, read How Does a Bedside Sleeper Attach to the Bed? and Bassinet vs Bedside Sleeper: The Quick Facts. If you're choosing a different HALO model, see the guide to best halo bassinest swivel sleeper 3.0 sheets.
Which bedside sleeper sheets should you choose?
Choose the Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20 if your mattress is 33 x 20 inches and you want the largest sheet rotation. Pick the Biloban for a compatible GROWNSY or Semphis sleeper, or the Gllquen muslin 3-pack if cotton and a 33 x 20 fit matter more.
Choose Niceye or lulumoon for a 33 x 21 inch mattress, using Niceye when you need its two size options and lulumoon when the stated fit range helps. Pick LYRICHOM BABY only when your mattress is closer to 33 x 22 inches.
The decision rule is simple: measure the mattress first, then match the size, pocket depth, fabric and pack count. A sheet that fits the mattress securely is more useful than one chosen for color or material alone.
Our top 3 picks at a glance
-
1
Best for a 4-sheet rotation
Gllquen Baby Bedside Sleeper Bassinet Sheets 33x20
9.6/10 our score
See it on Amazon -
2
Best for select GROWNSY sleepers
Biloban Bassinet Sheets for GROWNSY and Semphis
9.5/10 our score
See it on Amazon -
3
Best for 33 x 20 muslin cotton
Gllquen Baby 3-Pack Muslin Cotton Bassinet Sheets
9.4/10 our score
See it on Amazon
Frequently asked questions
How do I choose the best bedside sleeper sheets?
Measure the mattress length and width first, then compare the sheet's stated fit range, pocket depth and shape. A 33 x 20 inch mattress needs a closer match than a 33 x 22 inch mattress.
Also choose a pack size that gives you a clean sheet during washing and routine changes.
Are bedside sleeper sheets universal?
No. Bedside sleeper mattresses use several shapes and sizes, including 33 x 20, 33 x 21, 33 x 22 and smaller oval or hourglass formats.
Some sheets name compatible sleeper models, but you should still measure the mattress and check the sheet dimensions before ordering.
How many bedside sleeper sheets do I need?
A 3- or 4-pack gives you more flexibility for spit-up, leaks and laundry days. A 2-pack can work if you wash sheets often and have another backup.
The best count depends on how quickly you can wash and dry a fitted sheet after a change.
Can I use crib sheets on a bedside sleeper?
Only if the crib sheet fits the bedside sleeper mattress snugly and leaves no loose fabric. Standard crib sheets are often too large for a bassinet or bedside sleeper.
Compare exact length, width, pocket depth and mattress shape instead of relying on the word fitted.
What mattress should I measure for bedside sleeper sheets?
Measure the mattress itself, not the inside of the sleeper frame. Record its length, width and thickness, then compare those numbers with the sheet's stated size and pocket depth.
Our guide to the bedside sleeper mattress explains which mattress measurements matter.
