Your basic extra-dimensional space
 

Hidey-Hole (S) [10]: this spell creates an extra-dimensional space large enough for one person (and everything he is carrying). This space is neither to warm, nor to cold for the caster and allows him to rest comfortably and securely for the duration of 8 hours. Any spell that would warn the caster of danger functions while the caster is in his hidey-hole. The caster can create a hidey-hole for another character as well. Casting a detect magic on the hex where the entrance to the Hidey-Hole is will reveal the fact that there is magic there, but not the spell used.

Re: Your basic extra-dimensional space
 

Derp! This is an IQ12 spell.