Is it Better to Sleep on the Hard Ground?

The other day I listened to the interview with Victoria Boutenko on the first night of the Raw Mom Summitt and she spoke about her whole family sleeping on either the floor or another hard surface. She explained for the first couple of nights or so your body would be detoxifying and you would probably feel discomfort, but after about seven nights, you would feel aches and pains sleeping on your soft bed! I talked to my partner, Laye about it and he said that back in Senegal growing up they used to sleep on the ground as well and often children would just fall asleep wherever they were on any surface. It reminds me of watching my own son just fall asleep so deeply after playing with trains for hours on the living room floor and simply letting a train drop from his hand and rolling over on his side.
In one of Victoria's first books "12 Steps to Raw" she writes "our bodies need to stretch out at night. All the bones and joints can only stretch out when we lie on a hard surface...the spine is improperly positioned while driving, in front of the computer, watching tv, such that some joints don’t get adequate spinal fluid and blood enriching oxygen."

This great article on zafu.net (the website of a company that sells yoga props and meditation pillows) gives a more in depth exploration of "Sleep Ergonomics" and the habit of traditional peoples to sleep on hard surfaces. You can find it here