I used to sleep on latex mattress during my uni year. No allergy problem. Latex mattress is very comfortable as it supports natural human body contour unlike spring mattress. Natural latex has small pores which help in air circulation, thus you will not feel hot.
If you choose latex mattress, make sure it is made of 100% natural latex and not synthetic one. Geetha is a good choice.

This post has been edited by A2Z2U: Apr 16 2012, 08:26 AM