Back sleeping is one of the most common causes of snoring, so I looked at SnoreLessNow's Posiform Anti-Snore Pillow, which is built specifically to discourage it.
The Posiform pillow is shaped to make sleeping on your back uncomfortable, nudging you toward side sleeping — a position that keeps the airway more open and reduces snoring for a lot of people, without requiring a mouthpiece or strap.
SnoreLessNow backs the Posiform with a 120-night money-back guarantee, which is an unusually long trial window and suggests the brand is confident it works for most people who actually give it time.
Regular price is $129.99, and it's currently listed at $119.99, with free US shipping included. Given the 120-night trial removes most of the purchase risk, that's a reasonable price for a non-invasive snoring aid.
Save on your order: sign up for 10% off, and buying 2 Somnofit-S units saves $75. Shop the SnoreLessNow Posiform Pillow here.