Finding Derek - which chronicles Draper’s long struggle with the coronavirus and how it has affected Garraway and their children Darcey, 15, and Billy, 12 – scooped the Authored Documentary gong at the glitzy awards show.
Afterwards Garraway posted a moving photo on Instagram showing Draper smiling as she FaceTimed him to say the documentary had won.
“Wow,” she wrote. “Thank you so so much. Have been in such an emotional daze all night I failed to get a single photo of me or the brilliant @flickerproductions team who made #findingderek @theofficialntas!!
“But maybe this is the photo you most wanted to see anyway - Me FaceTiming Derek (via Darcey’s phone!) to tell him we had won!"
She went on: “From him and from the bottom of our family’s hearts THANK YOU.
"For all who are struggling on and holding on to hope - this is for you.”
The Good Morning Britain star also said she saluted the “brilliance and bravery” of the people she had been up against in the Authored Documentary category – Marcus Rashford, Katie Price, Roman Kemp and Rob Burrow.
Watch: Kate Garraway dedicates award to her husband Derek Draper
Earlier in the day, Garraway had confessed that she initially didn’t want to go to the awards ceremony because she felt so sad about going without her husband, who returned home in April after more than a year in hospital and now needs round the clock care.
When she won, the TV star dedicated the gong to Draper, telling him: “Believe.”
Breaking down in tears as she took to the stage, Garraway said: “We've all been touched by the pandemic.
"I just want to say to all the Darceys and Billys and Dereks, whatever you're going through you're not forgotten.
"You want joy back, you're not forgotten.
"Most of all Derek, who should be here - Derek you're going to get the chance, believe!"