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🌟 Travel light, sleep right—comfort that follows you everywhere!
The Frelaxy Ultralight Sleeping Bag Liner is a premium, breathable polyester travel sheet designed for all-season use. Weighing up to 50% less than cotton and packing down ultra-compact, it offers superior comfort with a silky-soft feel and integrated pillow sleeve. Available in three sizes, it’s machine washable, quick-drying, and perfect for backpacking, hostels, and travel, ensuring hygienic, cozy sleep on the go.





| Age Range Description | Adult |
| Asin | B0D31HCJQB |
| Best Sellers Rank | #1,726 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #1 in Camping Sleeping Bag Liners |
| Brand Name | Frelaxy |
| Closure Type | Pull on |
| Color | Navy - No Zipper |
| Customer Reviews | 4.2 4.2 out of 5 stars (153) 4.2 out of 5 stars |
| Eu Spare Part Availability Duration | 10 years |
| Fill Material Type | Polyester |
| Included Components | storage bag |
| Item Dimensions L X W | 84.6"L x 37.4"W |
| Item Type Name | Sleeping Bag Liner |
| Item Weight | 6.4 ounces |
| Manufacturer | Frelaxy |
| Material | Polyester |
| Maximum Height Recommendation | 84 inches |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Occupancy | 1 Person |
| Seasons | All Seasons |
| Shape | Rectangular |
| Shellmaterial | Polyester |
| Size | 27.5in x 84.6" |
| Temperature Rating | 16 to 30 degrees Celsius |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Warranty |
User
Great material
This thing is super comfy. It feels great on my skin. I haven’t had the chance to sleep in it camping yet but I did sleep in it one night to test it out and it was greatEdit: slept in it on a backpacking trip and my opinion is the same, it's great. I mean, it is a sheet but sewn into a bag. You know what that is. It packs down small and will definitely be on every camping trip now
User
Light, effective, easy to carry
Took this on a camping and hiking trip to Havasupai end of June 2026. This sheet was light enough for the evenings and light and compact for backpacking. It’s like sleeping in a little potato sack. The flap on one side is nice to cover up arms/shoulders. Comes with a cute little carry pouch too.
User
Good for travel
Light, comfortable, and easy to wash. Great option for travel, especially when you don't want to sleep on the hotel sheets. Can be a little difficult to get in and out of.
User
No zipper
Purchased for my teenaged son to use instead of a sleeping bag at summer camp, and for an upcoming trip out of the country. The bag was a bit slimmer than I expected, and it could only be entered from the top. Definitely a great bag to line a sleeping bag, not so great to use as a bed roll. Note: we live in a hot climate so no zipper was a deal breaker for us. Would work better with a mummy bag. Was easy to roll and put back in the provided carrying bag.
User
Does its job
The liner does what it's supposed to do. We had to bring our own sheets to a college dorm and were packing super light. I bought the smallest size first. I'm around 5' and less than 120 lbs., and psychologically (not physically) I thought it was too small. So I got the next size up for the rest of the family (two of whom are around 5'9", 140 lbs). I would've returned the smallest one and got a larger one for myself too, but I felt bad doing so. We just used the liners this past weekend. Neither the smallest one nor the next size up took up much space in our carry-ons. It really is a thin liner so if you want something more substantial and weighty to cover yourself, this isn't it. Regarding durability, I don't sleep well. Even with all of my tossing and turning, the liner did not tear. Originally I was tempted to get a different brand with a zipper to facilitate entry and exit--again, I was afraid it'd tear--but it didn't even though I'd get up multiple times at night. I like that there's a pocket for a pillow because with all of my tossing and turning on that slippery dorm mattress, I did not lose my pillow. The material is soft and didn't irritate my sensitive (eczema) skin. It wasn't a cold environment, but cold enough due to air conditioning. After the first night, I turned down the AC because I was too cold. After that, I didn't feel like I needed an extra blanket for warmth.
User
Didn’t know I needed it, now can’t live without it
Kept me cool on its own on a warmer night and warm and soft inside the sleeping bag in cooler nights. Very lightweight and compact. Took on a backpacking trip but plan to bring it to Europe with me, too! It held up in the washer/dryer and still feels soft, too!
User
Good liner
Inexpensive And works well, Nice size
User
Superbly comfortable…
Unprecedented comfort…
User
Good and comfortable
Very good liner and comfortable
User
Sleeping bag liner
This sleeping bag liner was a good price and decent quality
User
Confortable
Excellent liner. J'adore sa grandeur, c'est vraiment confortable pour dormir n'importe où. Le tissu est doux et garde au chaud durant la nuit.Seul point négatif, le petit sac de transport a déchiré à la couture après 2 utilisations.
User
Perfect for travel.
I loved this as a sheet set for travel. I had my own sheets that were so small and light weight in my suitcase.
User
Soft, light, small
Small, but cozy. A little hard to get into but makes for a handy bedsheet at a hotel or air b&b if you're not sure about the bedding situation and it's light and small to pack.
Trustpilot
1 week ago
2 weeks ago