Siva Atom
People who have aches and pains and want maximum support with cooling features.- 9 out of 10 Casper sleepers say they have less back pain after sleeping on our mattresses.*
*Based on a randomized survey of Casper mattress product owners conducted in January 2020.
- Continuous ergonomic zones with gel pods relieve aches and pains.
- 3 layers of perforated breathable foam with cooling gel help you sleep cool and wake up refreshed.
- Hybrid design combines foam and springs for added lift and airflow.
- Each mattress cover is made with up to 121 recycled bottles.
Fast, free shipping with every order.*- Best sleep of your life or your money back with our 100-night risk-free trial.*
- 10-year limited warranty.*
- Designed by Casper Labs.
- Free, easy pickup returns.* We do all the packing.
*Select products ineligible for free shipping where indicated. Additional shipping fees apply to AK and HI. See Terms.
Size guide
- Regular price
- $129.00
- Sale price
- $129.00
- Regular price
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- Unit price
- per
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Tax included.
This is a demonstration store. You can purchase products like this from Pure Fix Cycles
Will the Atom work with fenders or a rack?
The Atom works well with fenders as it mounts inside the confines of the frame. Aaron has fenders on his bike (a Surly Cross-Check) and the Atom fits great. For racks, depending on the type of rack and the mounting point on the frame, there may be a need for a small spacer (~5mm). We’ve tested it on all the bikes we can get a hold of and the 5mm rule has been holding true.
How much resistance does the Atom add to riding?
The resistance is very small, and is proportional to how large your charging load is. At full generating capacity, it is akin to riding with your tires at 70 psi instead of 90 psi, or pedaling up a 0.3% grade. In our use around town, it is very difficult to tell that it’s on the bike.
