HEADROOM
To be sure you can sit up, get a friend to measure your height when sitting, then compare this to the maximum internal height of the inner tent, but note that many tents taper so you may not be able to sit up throughout the inner tent.
To be sure you can sit up, get a friend to measure your height when sitting, then compare this to the maximum internal height of the inner tent, but note that many tents taper so you may not be able to sit up throughout the inner tent.