So I live in Warrington mate. Am an Essex boy by birth, went to Uni in Manc in 1997... essentially then never left the area. Met a Scouse lady in 2010, moved to Warrington as a "halfway point" as she worked in Liverpool, settled down, had 2 kids....etc etc
Most of my clients/suppliers are in London/South East/Milton Keynes so I travel a lot.
Back to the sleeper /Warrington aspect - the hotel over the road from WBQ (Patten Arms) is pretty traditional/basic but safe/cheap/warm/decent-ish breakfast - my parents have stayed there where when visiting, as have I recently (both my 8 year old & 5 year old lads love hotels & "sleepovers" with Mum and Dad!) You've got the Village Hotel & the Waterside Hotel (ex Prem Inn) as decent options in Warrington, both near my office but agree there could be more hotels in Warrington.
Pricing for the sleeper is pretty competitive I think for the classic berths this time of year if you buy an advance rail ticket and then the room supplement which is what I did - am not convinced by the club pricing premium/price for the double beds/1st class service ones for business use....but maybe I would feel differently if I went on a leisure trip with the missus and cost is then for 2 people. I imagine its a chunk more in summer/peak season.