Peta Cavendish says her family has been left "heartbroken" after being robbed of "security and dignity".
The Cavendish family were threatened at knifepoint by four armed men while Mark was "violently attacked" in the burglary at their home on 27 November.
The Manx cyclist was suffering from two broken ribs and a collapsed lung sustained in a crash on 21 November.
Essex Police said none of the family sustained serious injuries but were "incredibly shaken" by the incident.
Peta Cavendish said the nightmare has robbed the family of their "sense of security, safety, privacy and dignity" and is appealing for anyone with information to contact Essex police.
— Peta Cavendish (@petatodd) December 8, 2021
Glen Maye requisition meeting scheduled
Viking longboat races today
Postal vote applications have to be in soon
Mum launches petition over university support
Bus services north and south face disruption later
Wildlife Trust unveils woodland plans
Deadline looms for by-election nominations