And just got back home.
Verdict:
The clothing was great for the weather. Without any lining, the pants are airy keeping my bottom half cool and hiked up to the top in just the 'under shirt' I had which was a plain tight/ish t-shirt.
Got to the top and I should have thrown the thermal layer in straight away but chilled out a little too long. Either way, thermal layer on, in the sleeping bag - Cosy all night with temps of around 5*C. Shame it doesn't get pitch black up there though, was dusky all night long.
Slept ok...ish. The lounger wouldn't fit into the tent with space to lie on top but was excellent to have up there anyway to chill out on.
So future wise I'll have a proper mattress as well. Shoes as well, my boots weren't hiking boots but safety boots from work. Comfy/ish but I would have gone around the top and down the other route instead of back the way I went up.
On the way down it was forecast to rain so with the water proof lining in the pants and the jacked over the back of my bag, off I set on a decent. It rained as I reached my car ^.^ Legs were soaking though from the waterproof lining in the pants. Next time I'll have a set of pull-over water proofing lining for the pants. Really happy with how the gear worked though.
Solo hike-camp up to the top is haard work with all the weight of the bag.
Thanks again all, thoroughly enjoyed it and will definitely go back up once I have better gear for it.