What size of the mat is best for sleeping?

Smaller mats are usually not ideal for sleeping because only part of the body lies on the stones, while the rest of the body stays at mattress level. This height difference can feel uncomfortable during long sessions.

For most shorter users, the Compact Pro (24" × 59") works well. For taller users, the Professional size (29" × 73") is generally more comfortable. The Single size (39" × 75") offers full-body coverage and is usually the best option for regular sleeping.

Queen-size mats are rare and unique because they allow separate heat control on the left and right sides. They are an excellent choice for couples sharing the same bed.