A review of Saturday's action in the Clydesdale Bank Scottish Premier League.
The Hoops had been humbled 3-0 at home to Juventus in the first leg of their Champions League last-16 tie on Tuesday night but responded well to losing a 10th-minute goal to Tannadice midfielder Stuart Armstrong to surge ahead through defender Efe Ambrose, Kris Commons and Joe Ledley.
Fraser Forster made a great save from a Jon Daly penalty, and Commons grabbed his second from the spot 10 minutes into the second half before Anthony Stokes notched a double to complete the rout, with Johnny Russell scoring late on for the Taysiders.
Higdon's left-footed strike, his 18th goal of the campaign, put Motherwell three ahead before the hour mark and made it 12 goals and three wins in total for the Steelmen against their Highland visitors.
Higdon opened the scoring on the half-hour mark with a more simple finish and Nicky Law netted Motherwell's second following a typical burst into the box.
Heffernan became the second Kilmarnock player to score a hat-trick at Tynecastle this season, matching the absent Cillian Sheridan's tally from earlier in the campaign.
The striker gave his side a 1-0 half-time lead, before a six-minute second-half double settled the contest.
The win moves Kenny Shiels' side into fifth after winning their third league win in four.
Ivan Sproule scored the only goal of the game in the 11th minute with a superb strike from the edge of the 18-yard box.
Hibs have now struck five times in their three wins over the Paisley men this season and Griffiths has scored them all.