Is my bearded dragon's enclosure setup safe? Do I need night heat?

Thanks for your question about Smaug, and thanks for the photo as well! I think that you have a good start to your set up, and that we can tweak a few items. First, your lighting situation appears adequate - I see a UVB light (please change this bulb every 4-6 months), a basking light, and a ceramic heat bulb. I would ensure that your temperatures are appropriate for this species, and that you are monitoring them using digital thermometers (I think that you see both a digital and analog thermometers currently) at the level of Smaug. Analog thermometers are inaccurate, so I don't recommend using them (also, they are high up on the sides of the enclosure, so they wouldn't be giving an accurate temperature read for Smaug). For the cage furniture that you have, I like that you have places for Smaug to climb and hide. However, I would recommend having a hide on both the warm side of the enclosure and the cool side so that Smaug has choices. Same for the climbing structures. I may have missed a food and water dish in the enclosure - I would recommend that both of these be shallow, and be large enough for Smaug's entire body to fit within them. I cannot tell what type of shavings that you have on the bottom of the enclosure, but the only wood shavings that I recommend are aspen shavings. If they are pine, these can be irritating to the respiratory system. I hope that gives you a place to start, and thanks for using Petco Pet Education Center, formerly Petcoach!

The lights should go off at night. A photo period of 12-14 hours depending on the season is recommended. The heat lamp can be turned off as long as nighttime temps in the enclosure do not fall below 70 F. If they do, you can use a ceramic heat emitter, or CHE. This will provide heat without visible light and will not disturb your dragon while sleeping.

I think leaving the red light on at night is fine. I would try not to let it get below 60s at night. I am going to attach a great resource about husbandry and diet for your bearded dragon to help give you better guidelines on his temperature, lighting, and diet. I hope this helps. http://www.anapsid.org/bearded.html

50% humidity is a bit too high. Ideally, it should range between 30 and 40%. Consider a ceramic heat emitter (CHE) which will emit heat without visible light. Prolonged periods of high humidity may promote bacterial or fungal overgrowth and could predispose Calvin to respiratory infection.

As long as the room temp doesn't drop below 70 F overnight, Lincoln should be fine. A nighttime drop in temps is normal in a beardie's natural environment anyway. Be sure to pick up a spare along with the replacement tomorrow. In a pinch, a hot water bottle wrapped in a hand towel can be used as a heat source.

It is okay for nighttime temps to drop a bit. Make sure they don't go lower than the low 70s F. Consider a thermometer at each end of the enclosure to verify temperatures. If necessary, a 60 watt CHE would probably heat or maintain temps above the low 70s F in a small tank overnight. You would need to test it out. Save the receipt in case you need to return it or buy a 100 watt CHE and move it farther away from the tank.

Thanks for reaching out regarding Night Hawk and including photos. The pictures appear good and seems a lot of thought went into your set up. You haven't mentioned UVB radiation or diet, but everything else appears good. Even though geckos are noctunal, they are often inactive during the day but receiving radiation. Insect species need to be varied and gut loaded with a variation of fresh vegetables. Good luck.