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Your cart is empty.The Sea to Summit Adaptor is a versatile, stretchy sleeping liner that adds comfort and personal hygiene to sleeping bags or hotels. Suitable for a variety of temperatures and humidity, the Coolmax fabric is moisture-wicking and comfortable. The liner can be used on its own to avoid overheating on muggy nights or as part of a paired sleep system for greater warmth. Available in two shapes – a tapered mummy design compatible with most sleeping bags or, for an unfamiliar bed, a traditional rectangular shape with a pillow insert. Available with optional Insect Shield permethrin treatment. Easy to clean, the Adaptor travel liner is machine washable and dries quickly in the air. Includes stuff sack for compact storage. Mummy (sleeping bag) version is 82 x 36-inches (at maximum width) and weighs 8.7oz. Traveler (rectangular) version is 85 x 36-inches and weighs 11.6oz.
Estee
Reviewed in the United States on August 2, 2024
I loved: The softness and the insect-repelling feature.I did not love: How tight this was. I am a plus-size girl, and I felt like I could barely move in this thing. It wasn’t comfortable.Added the perfect amount of warmth, and I liked that I didn’t feel too hot as the morning warmed up.Sea to Summit should make more sizes in these liners. Big people like to camp and do outdoor things too. 👍🏻
P role
Reviewed in the United States on March 14, 2024
The sleeping bag liner arrived new and as advertised. I've used Sea to Summit's thermal bag liner and absolutely love it so i'm assuming this will be the same. The material is very soft and comfortable and on top of that if you spend money a good sleeping bags, these liners (in my opinion) do help preserve them and keep them cleaner when you've hiked around to get to your campsite.
Frivolo
Reviewed in Italy on February 13, 2024
Comprato a un prezzo stracciato usato - come nuovo.L'oggetto era effettivamente nuovo e privo di danni. Un ottimo liner da usare anche come sacco-lenzuolo a sé.Non aggiunge così tanta temperatura al sacco a pelo quanto dichiarato, però c'è un leggero miglioramento di circa 2°C.Compratelo per avere delle lenzuola e sporcare meno il sacco a pelo, ma non per ripararvi dal freddo.
Peggy
Reviewed in the United States on September 29, 2023
Used this in Refugio’s in the Dolomites of Italy. It kept my temperature just right as I NEVER had to wish to throw my legs out after overheating. Even temps! Another benefit was no entanglements from changing positions of gummy, side and back sleeping. Small pouch for carrying tightly in your backpack. Highly recommend!
SF native
Reviewed in the United States on August 17, 2023
I decided to buy this at the last minute before my first backpacking adventure in June, where temps in the redwoods were around 45-50 at night. I had read about the benefits of a sleeping sheet - keeps your sleeping bag clean longer, and added comfort. I haven’t tried other brands but this one is perfect for my needs. It’s a little odd at first to get into since it’s just open on one side, and it was paired with the Nemo Forte 20 degree (not quite as mummy as others but still a cocoon). It worked well in combination with the bag and was super helpful to have a light but comfy layer when I got too hot in the night. Unzipped the bag but still felt protected and warm enough. I love the fabric - soft and stretchy lightweight jersey that doesn’t fight when you are rolling around (which I do a lot). My next trip will be late summer and presumably a lot warmer, so I’m taking this with a down blanket vs sleeping bag.
Beaniezotzim
Reviewed in the United States on July 1, 2023
I have a Neoair xlite large sleeping mat. I hate the noise it makes when it rubs against my tent at night. There are two sounds these mattresses are notorious for: the crunchy chip bag, and the balloon maker. The crunchy chip bag isn’t that bad, but the sound of a clown making balloon animals all night is the nail in my coffin. I’ve been trying to find something over the years, and THIS is the most promising of products. The large matress fits completely inside this bag liner and cinches almost completely closed, covering the entire mattress with a soft, cottony texture that feels more like a bed sheet and removes the obnoxious noise of balloons rubbing against each other all night. So, this review doesn’t cover the actual use of the product the way it’s Intended, but if anyone out there has been tirelessly looking for the answer to this conundrum, this might be it!
Bianca
Reviewed in the United States on March 5, 2023
Very light! Comfortable and easy to carry. Keeps warm at night and cool in the morning. I went in Everglades, FL and there were tons of noseeum in the tent. It really helped. Whenever I was uncovered they would bite me. Put it all over and there were no bites. Happy I had it, so I could sleep well. Good value!
Misa
Reviewed in Japan on March 16, 2023
さらっとしていて気分が良い薄手でよく伸びるので身体に馴染む
keyn
Reviewed in Japan on October 30, 2023
使うと肌が直接触れないので、寝袋が汚れにくそう。あと１４度位のやや肌寒い日に、３シーズンシュラフに追加したら、ない時より薄着でも暖かく快適だったので、保温性もそれなりにあると思う。
Online Buyer
Reviewed in the United States on October 20, 2022
Bought this to use for a retreat where we were going to be sleeping in cabins with bunk beds. The linen and bed sheets were supplied by the cabin but I brought the sleeping bag liner with the Insectshield just in case. I found out later that Permethrin does not provide protection against bed bugs. Oh well, at least the sleeping bag liner still protects against fleas and ticks. Luckily I didn’t need to test out if the Insectshield really works or not as there were no bugs in the cabin or the bunk beds.The Coolmax fabric is nice if the temperature is not too low and if you start to get stuffy & begin to sweat while sleeping. The Coolmax fabric will help to let your body breath through the fabric and keep you from getting hotter. During the night at the retreat while sleeping in the cabin, my feet started to get hot and sweaty from sleeping underneath a couple of bed sheets with me inside the liner. Once I removed the bed sheets and slept just only inside the liner my feet started to cool down pretty quickly. I would not recommend this particular liner for any cold weather activities, the Reactor series are geared more for cold weather. But this Coolmax fabric does help keep you cooled down and be advised, like the other reviews say, the fabric is very thin and sheer so your body can be seen through the fabric if your skin is brushed right up against the fabric.
Customer
Reviewed in the United States on June 30, 2020
The longevity of the bug repellent doesn't match the price, but overall it's a nice sleep sack for hot camping trips in the jungle or desert. Used it on a coolish night of about 40 degrees, and it helped marginally when added to my 45 degree bag, but was more comfortable than anything. It's a nice addition if a tiny amount of weight isn't going to be the last straw, and you like the feeling of a soft sheet at night.
Selina ROBINSON
Reviewed in Australia on August 11, 2019
So good - we have been using it in the tropics and it works a treat!
AWD
Reviewed in the United Kingdom on January 7, 2016
Excellent - small, lightweight, ideal for travelling in the hotter climates.
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