It sounds like she may be calling. Is she sterilised? There could be a male cat in the area and she could be calling to him??? Our male cat called to our neighbours female cat at all hours of the day and night when he could hear her until several months after being sterilised. Even if your girl is sterilised it is possible she may be calling as that kind of behaviour can become habitual.

Our old girls yell all the time.......we think it is because they are losing their hearing and are using their voice echos to navigate.......Like Sewmum1 said, it could be habitual behavior if she is younger.......Make sure she is not having litterbox issues (straining in the box), the howling could indicate UTI's or other medical issues......if you believe it is not health related, then all you can do is bear with it and ignore and she should eventually stop if she doesn't get attention when she does it........Good luck!!

Sugartoes, a guy, does the same howling. It's because my husband gave him attention/response. I think they just like their people.

I have two fixed males and if the door is closed they will do that. If the door is open they just jump in bed and stay with us till it is time to get up. the caterwauling (howling) is them yelling to open the door. They are displeased with the humans. At least this is what we have deciphered from their behavior and what the vet told me.

I just have 2 neutered males. Fred is an indoor/outdoor cat and howls at me in the evenings sometimes after DH has gone to bed. I'm not sure if he wants out (we don't let him out at night) or wants me to join them in bed. He doesn't do it after I've gone to bed until it's time for DH to get up in the morning and let him out. Hope you find relief soon.

I have 3 female cats and non of them do this, they are all spayed, they have freedom of the house and sleep where they can. Maybe she needs the company, which it sounds like. Instead of locking her away in the laundry room, leave the litter box there and let her have the freedom, but not to the bedroom. Maybe rub a blanket, summer or winter on her and put it down in some place comfortable for her to sleep, try this and let us know how it goes. Our one cat does this during the day when she would rather go outside to do her business, doesn't like using the sand box for this. Good luck, hugs Maureen

"All I have to do is get up out of bed and go lay on the sofa and she is happy.". I think you answered your own question. My boy howls when he discovers me missing from the room, and continues as he looks for me. My girl doesn't meow..she just grunts. But she is happy at night with her toys--4 tiny mouse toys that she plays with during the night. She knows they are on table in den, but we have to go on safari ea morning to find and return them. Put some toys outside your bdrm door. Shewants you, but she might be satisfied with her own little ''person'' to focus on instead. Love all the cat personalities!

Some cats just don't want to be separated from the human they love. Every cat I have ever owned has cried when I have been out of their sight, male or female, makes no difference.
If I go downstairs without them, both my boys will sit in the stairwell and cry, unless I tell them they can come, then they're both down the stairs and through the door faster than jackrabbits.
If I go to bed at night, and they are asleep somewhere and don't know, they will wake up and cry until I call out and let them know where I am.

One of my boys, in particular, is very sensitive to the other occupants in the house. When our Spanky was ill and having to be fed special food, we would lock him in another room to eat, and Tao would sit outside the door and cry when he knew Spanky was ready to be let out. If ever Spanky was accidentally locked downstairs, Tao would sit at the top of the stairs crying until one of us went down and let him in.
He does the same thing now when the cat from next door comes up our (outside) back stairs, he will keep going to the dining room doors and cry out until I acknowledge that Mojo is there. (Mojo only has three legs and, although we love him and feed him whenever his owner goes away, which is often, we don't let him come inside, but Tao understands he is special so always tells me when he is upstairs.)

Tao also cries when his daddy goes downstairs, until I talk to him.
Cats are not the uncaring, unemotional, cold-hearted, animals the so-called experts make them out to be, especially if they have been brought up by loving humans who have talked to them and treated them as more than just a pet.

It's a shame your hubby is allergic to cats because the only answer I can suggest is to let him in with you.

Our cats are upset if we do something they do not approve of - such as going to bed late.
We had very hot weather this summer and I was sleeping on a camp bed in the lounge room with the air con on. Each night one of our girls would come in and howl at me as though to say "why are you hiding here?"
Tell your cat that your husband cannot have her in the room of a night, but you will see her in the morning and she should calm down.
One cat we had, became frantic when I wasn't home from work by sundown. Had to 'explain' to the cat that the sun was going down earlier, but I was still coming home at the same time each day. It was his first winter :-)
To explain to that cat - I had to hold his head making him look at me otherwise what I was saying didn't sink in as he would be distracted by what was going on around us. I do not need to do that to the current cats.
Like kids, I think it is a personality thing, not a sex thing.