Yes, I love the stuff. It gets very dry in Va in the winter and I keep this in the corners to help. Also its very soft and I stuff one hide with it so my snake also has somewhere to "burrow" if he wants as well as offering a textural difference to lay on. He uses it a few times a week.
On a side note, if you are using it when wet, make sure you put it in a shallow dish or on a plate so the bedding under it isn't constantly wet. Sphagnum moss is resistant to mold, but a lot of the bedding is not (except cypress mulch - but I wouldn't risk it being wet 24/7 either).
When you see that his belly is getting pink or he is looking ready to shed you can add a terra cotta pot with moist sphagnum moss on his warm side to use if he needs to