The humidity is usually at 50%, sometimes 65%. I just changed cages today with him so I'll list the old and new cage items. Old: Aspen bedding, water bowl, two hides (snug half logs), spot cleaned daily, feeds once every 5-7 days in 5 minutes or less prey item appropriately sized, 90 degrees on 1/3-1/2 cage/75-80 degrees on other part of cage. New: Cypress mulch, water bowl, two hides (one bonsai tree, one log), 90 degrees on 1/3 cage/75-80 degrees on other part of cage. Tonight I've heard him wheezing/whistling almost through his mouth several times. Vet time?