Footed pajama onesies in cotton flannel, jersey and micro-fleece sized for everyone:
http://www.bigfeetpjs.com/

And yes, they also come in camouflage. Introducing the tactical onesie:
http://www.bigfeetpjs.com/pajamas-sleepw...-footed-pjs.php

HT to:
http://scienceblogs.com/casaubonsbook/