It's a bit unusual though. Keep an open mind.
Weird, right? Weird, but this visualization actually helps. You're an immense, powerful mountain lion. You have no responsibilities. No worries. No cares. All day long, you have been roaming beneath the sweltering sun, climbing steep dirt hills and chasing prey to exhaustion. Now, worn and ready to sleep, you collapse into the earth. Stretch out your heavy mountain lion legs and yawn your mighty mountain lion jaw. You take a deep breath, expanding your hardy mountain lion chest. Every part of you is so cumbersome, so heavy; your paws cannot be lifted. Your strength is gone. You sleep.
Did it work? Goodnight.