Thermarest Synergy Sheet

Weighs 160g
Code: SS17165V
  • From £38.99
  • (FREE Delivery on orders over £15)
  • RRP £43.99
+ In Stock Now | Usually dispatched within 24 hours

A little bit of luxury in a small package. The Thermarest Synergy Sheets are comfortable and breathable sheets that will help protect your sleeping mat from dirt and moisture. Connect a Thermarest Quilt or Blanket to this sheet to create a lightweight, comfortable sleep system.

Thermarest says:

Add comfort, warmth and breathability to your sleep system.

Our brushed polyester Synergy Sheets fit snugly around all Therm-a-Rest® mattresses (including tapered and rectangular designs) to provide a luxurious feel, plus the practicality of cleanliness and breathability, while sleeping outside. Integrated perimeter loops mate the sheet with our full range of quilts and blankets to create a comfortable and warm sleep system.

If your looking for a little extra comfort on your trip, then the Therm-a-Rest Synergy Sheets will give you a little more luxury than just sleeping straight on your mat. It does mean carrying a little extra weight, but it's not much. Other than the comfort it provides, another great reason for using one is that it will protect the top of your mat from dirt and moisture during warm weather.

Simple but does the job.

- Reviewed by Ultralight Outdoor Gear

  • Compatibility: Adjustable to fit snugly around tapered and rectangular Therm-a-Rest mattresses.
  • Versatile: Integrated perimeter loops mate the sheet with Therm-a-Rest quilts and blankets to create a comfortable and warm sleep system
  • Comfortable: Brushed polyester adds luxurious feel and breathability.
  • Cleanliness: Keeps mattress clean; easily removable for laundering.


  • Weight: 160g
  • Dimensions: 51 x 183cm (20 x 72in)
  • Packed size: 7.5 x 15cm (3 x 5.5in)


  • Weight: 192g
  • Dimensions: 63.5 x 196cm (25 x 77in)
  • Packed size: 9 x 15cm (3.5 x 6in)



  • Weight: 212g
  • Dimensions: 76 x 196cm (30 x 77in)
  • Packed size: 10 x 16cm (4 x 6.5in)


  • Weight: 236g
  • Dimensions: 76 x 208cm (30 x 80in)
  • Packed size: 10 x 16cm (4 x 6.5in)

Duo Large

  • Weight: 258g
  • Dimensions: 127 x 196cm (50 x 77in)
  • Packed size: 20 x 12cm (8 x 5in)


  • 75D poly embossed
Showing our 1 review for Thermarest Synergy Sheet. Write a review ›
Review Summary - 5 out of 5 based on 1 rating.
September 21, 2020 | Willoughby
Say goodbye to mucky mats

My old Thermarest mats will never be resold because over the years they have picked up their fair share of marks, from after sun to moisturiser, toothpaste to bagless summer sleep drool, and inexplicably when falling asleep at 3am in duck chow mein. Finally after many years of trying to scrub the worst off, there's a great solution, and it makes bag-less sleeping more comfortable, and less fraught with post hike cleaning. No major accidents so far, but a much nicer feeling against the skin, and easy to whip off, and pop in the machine to spruce it up.

Ultralight Outdoor Gear Limited