Two armed men wearing masks broke into the 44-year-old victim's house in Meadowbank Terrace at about 00:50.
During the assault the men knocked the victim to the ground and hit him repeatedly with a blunt object before fleeing the property.
Police Scotland have appealed for witnesses.
The first attacker was white with a pale complexion, in his early 20s, 5ft 10ins tall and had dark hair growth on his face, brown eyes and dark unkempt hair.
He was of skinny build and was wearing a light grey cotton zip-up tracksuit with the hood up, grey gloves, white Reebok classics-style trainers with air holes and a grey scarf.
The second attacker is in his early to mid 20s, between 5ft 6ins and 5ft 8ins tall and of skinny build.
He spoke with a local accent. He was wearing an old, black, waist-length outdoor jacket with a dark scarf covering his face and his hood up. He was wearing dark gloves.
Det Insp Alan O' Brien, of Police Scotland, said "This is a particularly vicious attack on a disabled man in his own home and we would ask anyone who saw or heard anything suspicious in the Meadowbank Terrace area in the early hours of Monday morning is asked to contact police immediately.
"In addition, anyone with any information that can help us with our inquiries and assist in tracing the men responsible should also get in touch."

Bell travelled around the Middle East in the early 1890s and is credited with drawing up the borders of modern Iraq.
Her Grade II* listed childhood home, Red Barns, in Redcar, has since been a pub and hotel and is now empty.
Redcar Labour MP Anna Turley is seeking help to save the building and use it as a museum, learning centre and tourist attraction.
"Red Barns has huge significance to the local area and it is tragic that such a beautiful building with so much history has deteriorated into such a poor state," she said.
The current owners have planning permission to convert the building into flats, but are "sympathetic to the building's relevance to the community", she said.
The manager of Bell's photographic archive at Newcastle University, Dr Mark Jackson, said it was "desperately sad" her home had fallen into disrepair.
The house was designed by renowned Arts and Crafts movement architect, Philip Webb, and the interiors were by designer and artist William Morris "so it's an architecturally important building", he added.
Bell left a "fantastic record" of buildings and communities long since destroyed, including 50 photographs of Palmyra in 1900, much of which has been destroyed by so-called Islamic State, Dr Jackson said.
In 2015 Nicole Kidman starred in a film about Bell's life, Queen of the Desert.

They said that poor conditions at an overcrowded camp in Moria presented a "serious risk" to at least 3,000 migrants living there.
A man in his 20s said to be a Pakistani was found dead in his tent on Monday.
A 22-year-old Egyptian man and a 46-year-old Syrian man who shared a tent died last week. Reports suggest they inhaled toxic fumes from heaters.
Greek police are now investigating the deaths.
Local media have cited carbon monoxide poisoning as a possible cause of deaths, as the cold winter weather has forced many migrants to use heaters and wood-burning stoves to keep warm.
"Something has got to give," International Rescue Committee Greece director Panos Navrozidis was quoted as saying by Reuters. "We cannot tolerate this wanton loss of life."
The Doctors of the World charity said poor conditions at the camp posed "serious risk" to migrants.
More than 60,000 migrants and refugees - many of them from conflict-ravaged countries like Syria, Iraq and Afghanistan - currently live in camps around Greece.
Aid groups say many of the camps are overcrowded, with Human Rights Watch describing the conditions in some of them as "deplorable and volatile".
A note on terminology: The BBC uses the term migrant to refer to all people on the move who have yet to complete the legal process of claiming asylum. This group includes people fleeing war-torn countries such as Syria, who are likely to be granted refugee status, as well as people who are seeking jobs and better lives, who governments are likely to rule are economic migrants.
A disabled man has been left with serious injuries after being attacked in his own home in Edinburgh.
[NEXT_CONCEPT]
A campaign has been launched to save the childhood home of the explorer, writer and archaeologist Gertrude Bell.
[NEXT_CONCEPT]
Aid groups have raised alarm over the deaths of three migrants on Greece's Lesbos island inside a week.