Linden House Hotel (London).
6 Sussex place, Hyde Park
, London, W2 2TP.
There is possibly closer hotels, but that one is available, not too expensive & it says it's near Earls Court......it's definitely near an underground line
Hope this helps
Telephone: 020 7723 9853 (+44 20 7723 9853) or,
Email: reservation@lindenhousehotel.com.