If this is the case, reduce the range of movement slightly by placing a folded gym mat or thick towel on the ground and work on your flexibility. (fitnessandpower.com)
Put a pad or thick towel down to protect the surface (just be careful — a towel isn't waterproof). (snuggwugg.com)
For starters, go get your self some nice super thick towels. (craft-o-maniac.com)