thank you so much for knowledges

my terrairum very big ...3 dragons were sleep for 1 week but only 1 dragon everday under the lights

light under 35-40 C, other places 17 C, when i closed the lightin terrairum 15 C, but for unsleep dragon is it normal or not? if i change sleepind dragon's place for them is it can be better? (15-20 C and dark) eventual, what is the third and second pic.'s morph? and how long must sleep my sleeping dragons?