United Kingdom, April 16 -- James Brolin's marriage to Barbra Streisand has survived because of their mattress.

The 84-year-old actor has been married to Hollywood legend Barbra, 82, since 1998 and he insisted that their bedding was the "best investment" they have ever made during their almost 30 years together.

Speaking on 'The Today Show', when asked about the secret to the success of his marriage, he said: "The best investment we've ever made is our mattress.

"And don't misunderstand me. We're both lazy. We love to sleep late. We do a lot of our work on the phone, on paper, reading, right next to each other."

Meanwhile, the former 'Life in Pieces' star - who has Josh, 57, and Jess, 53, with his first wife Jane Cameron Age as well a...