I usually take my Tresiba before bed and didn't take it with me for an unexpected sleepover 2 weeks ago. Took it about 14 hours late, didn't notice any difference in bg readings.
I took the missed dose as soon as I got home, stayed with that time for a couple of days and took another 3 days to delay the timing until back to before bed. No bigger fluctuations than I usually have, and I have pretty tight control.
Sleep well!