I know you should ignore the nightly 4am howling sessions otherwise you will teach them that howling is a great way to achieve what they want i.e attention. But DH thinks something needs to be done 
Since going on holiday to the rescue co-ordinators house whippy has decided that sleeping in her lovely, warm crate is no longer satisfactory, no she needs either a pile of greyhounds to sleep on or our bed alternatively she needs to howl for long periods of time at hourly intervals throughout the night to express her discontentment with her sleeping arrangements.
Is there a something that can be done to get her back to her normal, peaceful self any quicker, bar adopting a pile or greyhounds for her to sleep on?
Maybe some kind of calming music for dogs or something? A heat pad, maybe? Any solution other than my bed?