関連ワード:
is it good for you to lie on the floor is it good for you to sleep on the floor is it bad for you to sleep on the floor is it better for you to sleep on the floor is it good for you back to sleep on the floor is it good for you to sleep on the ground is it good for you to sleep on hard floor is it good for you to sleep on a mattress on the floor is it bad for you to sleep on the ground is it better for you to sleep on the ground
